Normal Range Alkaline Phosphatase Level Chart By Age
Alkaline phosphatase (ALP) is an enzyme found in various tissues throughout the body, including the liver, bones, and intestines. It is commonly measured through a blood test to diagnose liver or bone diseases. The normal range of ALP levels varies depending on age and gender. In this article, we will discuss the normal range alkaline phosphatase level chart by age.
Normal Range of Alkaline Phosphatase Levels
The normal range of ALP levels in adults is between 20 and 140 units per liter (U/L). However, the normal range varies depending on age and gender. Below is the normal range alkaline phosphatase level chart by age:
Normal Range of Alkaline Phosphatase Levels in Infants
ALP levels are higher in infants than in adults. The normal range of ALP levels in infants is between 150 and 650 U/L. This is because ALP is necessary for bone growth and development in infants.
Normal Range of Alkaline Phosphatase Levels in Children
The normal range of ALP levels in children varies depending on age. For children between the ages of 1 and 3, the normal range is between 104 and 345 U/L. For children between the ages of 4 and 6, the normal range is between 104 and 306 U/L. For children between the ages of 7 and 9, the normal range is between 90 and 270 U/L. For children between the ages of 10 and 12, the normal range is between 70 and 215 U/L.
Normal Range of Alkaline Phosphatase Levels in Adolescents
The normal range of ALP levels in adolescents is between 70 and 212 U/L. However, the normal range can vary depending on gender and ethnicity.
Normal Range of Alkaline Phosphatase Levels in Adults
As mentioned earlier, the normal range of ALP levels in adults is between 20 and 140 U/L. However, the normal range can vary depending on gender and ethnicity. Women tend to have slightly higher ALP levels than men, and African Americans tend to have slightly higher ALP levels than Caucasians.
Causes of High Alkaline Phosphatase Levels
High ALP levels can be caused by various factors, including liver or bone diseases, pregnancy, and certain medications. Common liver diseases that can cause high ALP levels include hepatitis, cirrhosis, and liver cancer. Common bone diseases that can cause high ALP levels include Paget's disease, osteomalacia, and bone cancer. In addition, certain medications such as antibiotics, birth control pills, and antidepressants can cause high ALP levels.
Causes of Low Alkaline Phosphatase Levels
Low ALP levels are less common than high ALP levels. They can be caused by genetic disorders such as hypophosphatasia, malnutrition, and certain medical conditions such as hypothyroidism and Wilson's disease.
Conclusion
ALP is an important enzyme that is necessary for bone growth and development. The normal range of ALP levels varies depending on age and gender. High or low ALP levels can be an indication of underlying health conditions. It is important to consult with a healthcare provider if you have concerns about your ALP levels.
